.table{
    width: 440px;
    height: auto;
    margin: 30px auto;
    background-color: black;
    .tr{
        width: 100%;
        height: 40px;
        line-height: 40px;
        text-align: center;
        .td{
            width: 110px;
            height: 40px;
            line-height: 40px;
            text-align: center;
            background-color: aqua;
            float: left;
        }
    }
}